The psychiatric morbidity in psoriasis patients was compared with that in vitiligo patients using the standardised Hindi (vernacular language) version of the General Health Questionnaire (GHQ-H). Thirty new and untreated patients each with psoriasis or vitiligo and between the ages of 18-60 yrs, constituted the study group. The prevalences of psychiatric morbidity as assessed by the GHQ-H were found to be 53.3% and 16.22% in the psoriasis and vitiligo patients respectively; the difference was statistically significant (p=0.0028). The prevalences of depression were 23.3% and 10% in psoriasis and vitiligo respectively and anxiety was observed in 3.3% of each group. Sleep disturbance was the most common complaint and was present in 56.6% of psoriasis patients and 20% of the vitiligo patients. However, the parameter of sleep disturbance showed a statistically significant difference between the two dermatoses (p=0.0034).

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The disposition of caspofungin, a parenteral antifungal drug, was investigated. Following a single, 1-h, intravenous infusion of 70 mg (200 Ci) of [ 3 H]caspofungin to healthy men, plasma, urine, and feces were collected over 27 days in study A (n ‫؍‬ 6) and plasma was collected over 26 weeks in study B (n ‫؍‬ 7). Supportive data were obtained from a single-dose [ 3 H]caspofungin tissue distribution study in rats (n ‫؍‬ 3 animals/time point). Over 27 days in humans, 75.4% of radioactivity was recovered in urine (40.7%) and feces (34.4%). A long terminal phase (t 1/2 ‫؍‬ 14.6 days) characterized much of the plasma drug profile of radioactivity, which remained quantifiable to 22.3 weeks. Mass balance calculations indicated that radioactivity in tissues peaked at 1.5 to 2 days at ϳ92% of the dose, and the rate of radioactivity excretion peaked at 6 to 7 days. Metabolism and excretion of caspofungin were very slow processes, and very little excretion or biotransformation occurred in the first 24 to 30 h postdose. Most of the area under the concentration-time curve of caspofungin was accounted for during this period, consistent with distribution-controlled clearance. The apparent distribution volume during this period indicated that this distribution process is uptake into tissue cells. Radioactivity was widely distributed in rats, with the highest concentrations in liver, kidney, lung, and spleen. Liver exhibited an extended uptake phase, peaking at 24 h with 35% of total dose in liver. The plasma profile of caspofungin is determined primarily by the rate of distribution of caspofungin from plasma into tissues.Caspofungin (CANCIDAS; MK-0991) is a parenteral antifungal agent that inhibits 1,3-␤-D-glucan synthesis, which forms a critical component of many fungal cell walls (4). Caspofungin is active against many clinically important fungal species, including Candida spp. and Aspergillus spp. (3,5,7,14), and in clinical trials it has been shown to be efficacious in the treatment of esophageal candidiasis (1, 15, 16), invasive candidiasis (9), and invasive aspergillosis (J. Maertens, I. Raad, G. Petrikkos, et al., Abstr. 42nd Intersci. Conf. Antimicrob. Agents Chemother., abstr. M-868, 2002). This paper describes results from two studies conducted in healthy human subjects to investigate the disposition of caspofungin following intravenous (i.v.) infusion of radiolabeled caspofungin and supportive studies of [ 3 H]caspofungin tissue distribution in rats, in vitro metabolism, and in vitro binding and partitioning in human plasma and blood. The metabolites of caspofungin, a cyclic hexapeptide, in humans have been previously reported (2). Caspofungin is the major component of radioactivity in plasma and urine in the first 24 to 30 h postdose, with a ring-opened form of caspofungin, M0, comprising a minor component. At time points of Ն5 days, M0 was the major component in plasma, and urine radioactivity was largely comprised of the synthetic amino acid dihydoxyhomotyrosine (M1) and its N-acetyl derivative (M2). Caspofungin...

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